Backup gunsight



FIG. 1 is a front, right, top perspective view of the backup gunsight.

FIG. 2 is a front, left, top perspective view of the backup gunsight ofFIG. 1.

FIG. 3 is a rear, right, top perspective view of the backup gunsight ofFIG. 1; and,

FIG. 4 is a rear, left, top perspective view of the backup gunsight ofFIG. 1.

The bottom appearance of the backup gunsight is not shown in the drawingand forms no part of the claimed design.

CLAIM We claim the ornamental design for a backup gunsight, as shown anddescribed.